In a two-person race, Romney would lead Perry 48-38, Cain would lead Romney 48-36, and Cain would destroy Perry 55-27.

The poll was conducted before last night's Washington Post-Bloomberg debate, in which Cain alienated some members of the tea party (his largest constituency) by saying he admired Alan Greenspan's leadership of the Federal Reserve.

PPP has a checkered history with polling — and this poll has a VERY large 4.5 percent margin of error — so don't read too much into this just yet.